DEPARTMENT OF ASTRONOMY AS^r 77<f / l^ipi -Zl^v, Ver^ DjJl (iJ^jx^^^Q^A^tf^-^^ %Lz^~ /j£o^Jk -6^3-K -^-© -^VU3-viL -AP^u^C^r Kill UO~»-^l CwKSU^JI^A PsJkf**W&^ ^ ^^^^Hk